The Prince Hybrid Spin 3D combines Poly Spin 3D and Synthetic Gut Multifilament strings. The Poly Spin 3D is a co-extruded co-poly with a 3 dimensional profile. We found this string to provide excellent access to spin and ball pocketing. The Synthetic Gut Multifilament is a soft multi that's arm friendly, yet still has a nice crisp feel. String the Poly Spin 3D on the mains for more control and spin. String the Synthetic Gut Multifilament on the mains for a softer stringbed and more pop.